| 微波消解原子吸收法测定骨头中的汞和硒 |
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| 引用本文： | 李晖,胡晓荣,程光磊.微波消解原子吸收法测定骨头中的汞和硒[J].光谱学与光谱分析,2004,24(10):1264-1266. |
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| 作者姓名： | 李晖 胡晓荣 程光磊 |
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| 作者单位： | 四川大学化学工程学院,四川,成都,610065;四川大学分析测试中心,四川,成都,610065 |
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| 基金项目： | 国家自然科学基金 (2 98770 1 8)资助项目 |
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| 摘 要： | 采用微波消解 ,定量进样氯化亚锡还原冷原子吸收法测定汞 ,流动注射硼氢化钠还原原子吸收法测定硒的方法 ,测定了实验大鼠股骨中汞和硒的含量。讨论了样品的前处理过程对测定结果的影响 ,对硒的测定条件 :硼氢化钠浓度、溶液酸度和载液酸度等条件进行了优化。实验显示 ,检出限汞为 1 6 5ng·mL-1,硒为 1 78ng·mL-1;相对标准偏差汞为 4 1% ,硒为 3 6 % ;线性范围汞为 0～ 12 0ng·mL-1,硒为 0～ 5 0ng·mL-1;回收率汞为 93 72 %～ 10 1 8% ,硒为 95 5 3%～ 10 2 2 %
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| 关 键 词： | 汞 硒 骨头 原子吸收法 冷原子吸收 氢化物发生 微波消解 |
| 文章编号： | 1000-0593(2004)10-1264-03 |
| 修稿时间： | 2003年12月16 |
Determination of Mercury and Selenium in Bone by Atomic Absorption Spectrometry after Microwave Digestion |
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| LI Hui,HU Xiao-rong,CHENG Guang-lei. College of Chemical Engineering,Sichuan University,Chengdu ,China. Analytical Testing Centre,Sichuan University,Chengdu ,China.Determination of Mercury and Selenium in Bone by Atomic Absorption Spectrometry after Microwave Digestion[J].Spectroscopy and Spectral Analysis,2004,24(10):1264-1266. |
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| Authors: | LI Hui HU Xiao-rong CHENG Guang-lei College of Chemical Engineering Sichuan University Chengdu China Analytical Testing Centre Sichuan University Chengdu China |
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| Affiliation: | College of Chemical Engineering, Sichuan University, Chengdu 610065, China. |
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| Abstract: | Mercury and selenium in the rats' thighbone were determinated by cold atom absorbance and flow injection hydride atom absorbance after digesting by microwave. The method of sample's making and digesting was discussed. The factors of determination of selenium were studied. The detection limits of mercury and selenium are 1.65 and 1.78 ng x mL(-1) respectively. The RSD% of mercury and selenium are 4.1% and 3.6% respectively. The linearity of calibration curve of mercury and selenium are in the concentrations of 0-120 ng x mL(-1) and 0-50 ng x mL(-1) respectively. The recovery of mercury and selenium are 93.72%-101.8% and 95.53%-102.2% respectively. |
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| Keywords: | Mercury Selenium Bone Atomic absorption Cold atomic absorption Hydride generation Microwave digestion |
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